Add a macro to map from BAR to rid # (inverse of PCIR_BARS).

svn path=/head/; revision=153861
2005-12-29 23:40:41 +00:00 · 2005-12-29 23:40:41 +00:00 · b60c6f4683 · 2020-12-20 02:59:44 +00:00
commit b60c6f4683
parent 3ac604874c
1 changed files with 1 additions and 0 deletions
--- a/sys/dev/pci/pcireg.h
+++ b/sys/dev/pci/pcireg.h
@ -116,6 +116,7 @@

 #define PCIR_BARS	0x10
 #define	PCIR_BAR(x)	(PCIR_BARS + (x) * 4)
+#define PCI_RID2BAR(rid) (1<<(((rid)-PCIR_BARS)/4))
 #define PCIR_CIS	0x28
 #define PCIM_CIS_ASI_MASK	0x7
 #define PCIM_CIS_ASI_TUPLE	0